Efficacy and Safety of DYSPORT® Using 2mL Dilution in Adults With Cervical Dystonia.

This study has been completed.

Sponsor:

Ipsen

ClinicalTrials.gov Identifier:

NCT01753310

First Posted: December 20, 2012

Last Update Posted: March 16, 2017

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.

Key information relevant to the recruitment process for the
overall study, such as dates of the recruitment period and locations

First subject enrolled: 7 January 2013; last subject completed: 9 January 2015. 46 investigational sites in the United States of America were planned, 43 sites were initiated and 38 sites enrolled adult subjects with cervical dystonia (CD).

Pre-Assignment Details

Significant events and approaches for the overall study
following participant enrollment, but prior to group assignment

150 subjects were screened; 16 subjects failed screening. 134 subjects were enrolled (signed informed consent) and were randomised with a 2:1 ratio of Dysport®:placebo. Randomisation was also stratified for subjects who were Botulinum toxin type A (BoNT-A) treatment naive or non-naive at baseline.

Reporting Groups

Description

Dysport®

Subjects were randomised to receive a single intramuscular injected dose of study medication, Dysport® 500 U/vial using a 2 mL dilution scheme. The dose of Dysport® was between 250 U and 500 U divided among a minimum of two clinically indicated muscles. Dysport® contains the neurotoxin Clostridium botulinum type A toxin-hemagglutinin complex (abobotulinumtoxinA).

Placebo

Subjects were randomised to receive a single dose of placebo by intramuscular injection. The placebo was provided in glass vials indistinguishable from the Dysport® vials. The placebo contained only the excipients used in Dysport® without the toxin, provided as a white lyophilised powder for reconstitution with the same storage and preparation conditions as for Dysport®.

Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

The baseline characteristics are presented for the Intent to Treat (ITT) Population which consisted of all randomised subjects.

Reporting Groups

Description

Dysport®

Subjects were randomised to receive a single intramuscular injected dose of study medication, Dysport® 500 U/vial using a 2 mL dilution scheme. The dose of Dysport® was between 250 U and 500 U divided among a minimum of two clinically indicated muscles. Dysport® contains the neurotoxin Clostridium botulinum type A toxin-hemagglutinin complex (abobotulinumtoxinA).

Placebo

Subjects were randomised to receive a single dose of placebo by intramuscular injection. The placebo was provided in glass vials indistinguishable from the Dysport® vials. The placebo contained only the excipients used in Dysport® without the toxin, provided as a white lyophilised powder for reconstitution with the same storage and preparation conditions as for Dysport®.